Prisma - TsED UsersRepository

UsersRepository.ts

import { isArray } from "@tsed/core";
import { deserialize } from "@tsed/json-mapper";
import { Injectable, Inject } from "@tsed/di";
import { PrismaService } from "../services/PrismaService";
import { Prisma, User } from "../client";
import { UserModel } from "../models";

@Injectable()
export class UsersRepository {
  @Inject()
  protected prisma: PrismaService;

  get collection() {
    return this.prisma.user
  }

  get groupBy() {
    return this.collection.groupBy.bind(this.collection)
  }

  protected deserialize<T>(obj: null | User | User[]): T {
    return deserialize<T>(obj, { type: UserModel, collectionType: isArray(obj) ? Array : undefined })
  }

  async findUnique(args: Prisma.UserFindUniqueArgs): Promise<UserModel | null> {
    const obj = await this.collection.findUnique(args);
    return this.deserialize<UserModel | null>(obj);
  }

  async findFirst(args: Prisma.UserFindFirstArgs): Promise<UserModel | null> {
    const obj = await this.collection.findFirst(args);
    return this.deserialize<UserModel | null>(obj);
  }

  async findMany(args?: Prisma.UserFindManyArgs): Promise<UserModel[]> {
    const obj = await this.collection.findMany(args);
    return this.deserialize<UserModel[]>(obj);
  }
  // etc ...
}